Question

1. A cell has 26 chromosomes. How many chromosomes will its gamete have? Which cell is called diploid and which one is haploid?

• 2. A plant has 42 chromosomes. Due to a problem its gametes did not undergo meiosis and they directly fused. The resulting offspring has _________ chromosomes. It now yields a bigger variety of fruits. This is called ______________.
• 3. Alligators have 32 chromosomes. Their skin cell will undergo _____________. After cell division __________ number of cells will be formed and each will have ______________ chromosomes. Its ovarian cells will undergo _____________. After cell division __________ number of cells will be formed and each will have ______________ chromosomes.

Answer 1

ANSWER :

1) If a cell has 26 chromosomes then its gamete has 13 chromosomes and called haploid cell while those one have 26 chromosomes would be diploid cell.

2) A plant has 42 chromosomes doesn't undergo meiosis then resulting offsprings would have 84 chromosomes and this condition is called tetraploidy.

3) Alligators have 32 chromosomes, their skin cells will undergo mitosis. After cell division diploid number of cells will be formed and each will have 32 chromosomes. Its ovarian cells will undergo meiosis. After cell division haploid number of cells will be formed and each will have 16 chromosomes.